Using the transliteration scheme advocated in several of my textbooks (which uses caps for emphatic, and doubles vowels for long vowels):

Qadhaafii.

Of course, the purpose of that scheme is so you know how to spell/say the word in formal Arabic and keep things in simple characters, which is decidedly different than the goal of "how do you best approximate it in English?"

For those wondering why his name is such a total mess, it's because of different mix and match games between what the Arabic letters indicate, how it's actually pronounced in the local dialect, and Anglicization to make it not look as funny to English-speaking readers.

I can see Clint Eastwood starring in a new movie called "Dirty Muhamar".He is called upon when Oil Tyrants need someone to do the dirty work of killing whomever threatens their rule. Like a modern day Have Gun, Will Travel. He leaves a Qudafadill on each dead body, until all of the flowers have gone.

This nonsense started when Peter Jennings wanted to show how cool and multi-culti he was by twisting his tongue all out of shape trying to give the proper Cathtilian pronunciation to Spanish place names in Central America during all the trouble there in the 80s and then everybody falling all over themselves going to the approved Commie spelling and pronunciation of Chinese place names.

Call him Kadaffy (as in Duck) and then call him dead.

PS From what I gather, the locals in Central America have their own pronunciation, liquifying the hard consonants so that Nicaragua sounds like Ni'ara'ua.

PPS The locals pronounce the capital of Red China Bay Ching, none of this Zhing nonsense.

I dunno why - I just have a hard time finding humor when it comes to Quaddafi - Or Gaddafi/Qaddhafi/Qaddafi/Gaddafi/Kaddafi/Khadafy/Qadhafi/Qadaffi or however the hell you spell that in Latin letters. (did bring a smile to my face, though)

The "k" or "q" sound is a qaf, usually transliterated as q. It's like a k produced at the back of the throat, although as James wrote, this is going to differ from one Arabic dialect to another. The "d" is a thal, a letter that is a hard "th" (like in "there"), but I've never seen it spelled that way in Qadaffi's name. Presumably another dialect issue. After that an alif (a), a fa (f), and a ya (y) which are essentially the same as their English counterparts.